appending uut result in front(prefixing the results)

[Radhu]

Hi all,

I have a situation where i have to append the result in front(prefixing the uut report) after every UUT test.'Write UUT report' step writes at the end of the file.is there any way to append it in the beginning of the file.ie, I want ot have the latest uut report appended in the beginning of the file.

I am using 1.sequential model.2.DLL option.3..txt format  report file.teststand version 3.1

Thanks in advance,

Radha R

[paulmw]

Post this question on the TestStand forum and you will probably get more responces.

I looked through the sequential process model and I am not sure you can do this with out changing the process model.  But the Teststand experts may know better.

[Brandon_V]

Hi Radhu,

There is no easy way to just tell TestStand to do this in this order, this is because TestStand writes to the file after every UUT. The only way you would be able to do this is by removing all the writing of the report from the Test UUTs in the process model and storing all of the information in an array that would contain all of the report information. Then, at the end of Test UUTs you would iterate backwards through this array writing one at a time.

Three problems arise from this:

1) If you are doing this for extended amounts of time, you will be using a lot of memory as it will be making copies of the report information for each UUT.
2) You will need to make sure you are storing all relevant information for the report in order to create the report yourself at the end of the Test UUT.
3) You will no longer be using the TestStand API functions to write the report, because of this you will need to make sure you do all of the steps needed.

If you are unable to do this in this manner do to memory constraints and other problems, there is another solution outside of TestStand.

You would have to write each UUT to a different file, then after the UUTs are complete, you would write a program that writes the actually report. To do this, you would open each file (backwards to get your desired order) and write to a new file. As long as you left the new file open, it would append the other files to it. Unfortunately, you still have to read the old file to input into the new.

Both of these ways constitute an extreme amount of programming to get working, but both theoretically should work.